| 摘要 |
An improved vacuum cleaner (110) has an acoustic dampening mechanism to substantially reduce the noise level generated from a suction unit of the vacuum cleaner while it is sufficiently cooled. Noise (194) that radiates from the motor is continually sucked back into the motor and in effect, the noise is bent by using suction so that the noise is muffled by being pulled back into the motor (160). <IMAGE> |
